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SGSiteGraph

lib.nerima.tokyo.jp

練馬区立図書館 公式ホームページ

Last scanned Jul 26, 2026, 1:19 PM

81

Overall score

Great

Summary

練馬区立図書館の公式サイトです。利用案内や施設案内、蔵書の検索や予約、休館日などを掲載しています。. This website uses Apache hosted on VECTANT - ARTERIA Networks Corporation, JP. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores poor (35/100) and performance excellent (100/100). Top issue: robots.txt not found.

練馬区立図書館の公式サイトです。利用案内や施設案内、蔵書の検索や予約、休館日などを掲載しています。

Japan
Hosted on VECTANT - ARTERIA Networks Corporation, JP

Top issues to fix

6 issues found · 1 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • 2 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

90

SEO

2 issue(s) found

100

Performance

543 ms

35

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

練馬区立図書館の公式サイトです。利用案内や施設案内、蔵書の検索や予約、休館日などを掲載しています。

YouTube

Meta tags

Title
練馬区立図書館 公式ホームページ
Description
練馬区立図書館の公式サイトです。利用案内や施設案内、蔵書の検索や予約、休館日などを掲載しています。
Canonical
https://www.lib.nerima.tokyo.jp/index.html
Language
ja
Charset
UTF-8
Viewport
width=device-width,initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
練馬区立図書館 公式ホームページ
og:description
練馬区立図書館の公式サイトです。利用案内や施設案内、蔵書の検索や予約、休館日などを掲載しています。
og:type
website
og:url
https://www.lib.nerima.tokyo.jp/index.html

Twitter Card

twitter:card
summary
twitter:title
練馬区立図書館 公式ホームページ
twitter:description
練馬区立図書館の公式サイトです。利用案内や施設案内、蔵書の検索や予約、休館日などを掲載しています。

Technologies

Detected frameworks, languages, and tools.

jQueryGoogle AnalyticsApache

Hosting & CDN

CDN provider
—
IP address
202.231.109.40
ASN
AS2519 (VECTANT - ARTERIA Networks Corporation, JP)

DNS records

TypeValue
A
  • 202.231.109.40
AAAA—
MX
  • mx.securemx.jp
TXT
  • v=spf1 +include:spf.securemx.jp -all
NS
  • ns017-wawdn6rqnxnwj65d.w.d-53.net
  • ns017-wawdn6rqnxnwj65d.w.d-53.info
  • ns017-wawdn6rqnxnwj65d.w.d-53.jp
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
DigiCert Inc
Subject
www.lib.nerima.tokyo.jp
Valid from
Dec 26, 2025
Valid to
Jan 8, 2027
Days until expiry
164
SAN domains
www.lib.nerima.tokyo.jp

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 11 · H3 0

Links

223 internal · 20 external · 2 broken

Images

45 total · 0 missing alt

Scripts / Styles

30 scripts · 8 stylesheets

JS / CSS size

180 KB · 39 B

Page size

168 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://lib.nerima.tokyo.jp
Final URL
https://lib.nerima.tokyo.jp
HTTP status
200
HTTP version
HTTP/1.1
Response time
540 ms
HTML size
168 KB
Redirect chain
https://lib.nerima.tokyo.jp

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Frequently asked questions

What technology does lib.nerima.tokyo.jp use?
lib.nerima.tokyo.jp is built with jQuery, Google Analytics, Apache.
Is lib.nerima.tokyo.jp secure (HTTPS)?
Yes. lib.nerima.tokyo.jp uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Jan 8, 2027.
Who hosts lib.nerima.tokyo.jp?
lib.nerima.tokyo.jp is hosted on VECTANT - ARTERIA Networks Corporation, JP.
What is lib.nerima.tokyo.jp's SEO score?
lib.nerima.tokyo.jp scored 90/100 for SEO in the latest analysis (excellent).
What is lib.nerima.tokyo.jp's overall website score?
lib.nerima.tokyo.jp has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.